Question

how many minimum no. of carbon atoms are requiredfor position isomerism in alkene?​

Answer 1

Explanation:

4 carbon atoms

Minimum 4 carbon atoms are required for alkenes to show position isomerism( if there is no functional group other than the double bond)

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Answer 2

Answer:

3

Explanation:

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3 carbons

Positional isomerism is generally exhibited by alkenes, alkynes, alkyl halides, ketones and alcohols etc. So, in an alkane chain, it'd require at least 3 carbons.